Reciprocating rasp surgical instrument

摘要

A reciprocating rasp surgical instrument for use in the surgical preparation of an acetabulum of a patient prior to implantation of a prosthetic acetabular component, the reciprocating rasp includes a shaft having a first end configured to be secured in a chuck of a reciprocating tool. A cutting head is secured to a second end of the shaft. The cutting head has a cutting surface having a plurality of cutting teeth arranged in a geometry that corresponds with the geometry of the acetabular component. The cutting head has an alignment guide that is devoid of cutting teeth and configured to cooperate with a complimentary alignment guide of an acetabular trial instrument.